<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    let b={
        name:'张三'
    }

    let c=b

    b = {
      name:'李四'
    }

    console.log(c.name)  //张三

    /*****************************************************/

    let e={
        name:'张三'
    }

    let f=e

    e.name='王五'
    console.log(f.name)  //王五



</script>
</body>
</html>